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140472 = 23321951
BaseRepresentation
bin100010010010111000
321010200200
4202102320
513443342
63002200
71123353
oct422270
9233620
10140472
11965a2
1269360
134bc27
143929a
152b94c
hex224b8

140472 has 24 divisors (see below), whose sum is σ = 380640. Its totient is φ = 46800.

The previous prime is 140453. The next prime is 140473. The reversal of 140472 is 274041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 904 + ... + 1047.

It is an arithmetic number, because the mean of its divisors is an integer number (15860).

2140472 is an apocalyptic number.

140472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140472 is an abundant number, since it is smaller than the sum of its proper divisors (240168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140472 is a wasteful number, since it uses less digits than its factorization.

140472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963 (or 1956 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 140472 is about 374.7959444818. The cubic root of 140472 is about 51.9832293058.

The spelling of 140472 in words is "one hundred forty thousand, four hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1951 3902 5853 7804 11706 15608 17559 23412 35118 46824 70236 140472